This weekend, we visited my uncle on the North Shore. Outside his house, you could see a white transformer on a telephone pole across the street (it probably wouldnt have worked for the extra credit). The transformer either increases (step up) or decreases (step down) the amount of voltage running through the wires. In this case, it is a step down transformer from high voltage in the wires to 120 volts found in sockets. The ratio ofnumber of loops surrounding the iron cores indicates the ratio of the initial and final voltage.

Next to my computer, my dad has about 5 different picture frames attached to the metal desk by magnets. Each magnet has a magnetic field surrounding it and both a north and south pole. When it gets near the metal, which has magnetic properities, it rearranges the metal's domain. The domain is now organized and gives the metal a temporary north and south pole. This allows the magnets to stick on to the desk.